Trail
Backyard Ultra
6.9 km
Start: Aug 1, 08:00 AM
Persistence Backyard Ultra
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Trail in Canada, London
Distances
About
Ontario's original affiliated backyard ultra, set on the August long weekend in London, Ontario — a test of persistence where the winner is the Last One Standing.
Catering & aid stations
On-course food and drink stations (aid stations) provided — details to be confirmed on event day.
Pacers
Pacemaker information not applicable — this is an untimed backyard ultra loop; participants run at their own pace to be the Last One Standing. No target pacer waves or pacer flags are used.
Typical weather in London
Monthly averages based on historical data (2000–present).
Jan-1°-8°
↑ 07:54
↓ 17:15
Feb0°-9°
↑ 07:24
↓ 17:56
Mar6°-4°
↑ 07:37
↓ 19:32
Apr12°2°
↑ 06:43
↓ 20:08
May19°9°
↑ 06:02
↓ 20:42
Jun24°15°
↑ 05:46
↓ 21:07
Jul26°17°
↑ 06:00
↓ 21:03
Aug25°17°
↑ 06:32
↓ 20:28
Sep22°13°
↑ 07:06
↓ 19:36
Oct15°7°
↑ 07:40
↓ 18:43
Nov8°1°
↑ 07:19
↓ 17:02
Dec2°-4°
↑ 07:50
↓ 16:52
Last updated: Jun 5, 2026, 11:37:08 PM
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